Thermal body



FIG. 1 is a top, rear and left side perspective view of a thermal body, showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a right side elevation view thereof, the left side elevation view is a mirror image thereto; and,

FIG. 6 is a front elevation view thereof.

The broken line showing of the environment is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a thermal body, as shown and described. 